Prepare rice in boiling salted water according to package instructions. Peel and dice 3 carrots. Cut 1 carrot into strips with the potato peeler. Clean, wash and slice the celery.
Wash the meat and dab dry. Season with salt and pepper. Heat oil in a pan. Fry the meat for about 10 minutes while turning. Remove and cut into cubes. Heat the stock in a pot and cook the vegetables for about 6 minutes.
Add the chicken. Season stock with salt and pepper.
Wash the apple, halve and quarter it. Remove core and cut quarter into slices. Spread slices of bread with butter. Cover two slices of bread with cheese, apple and turkey sausage. Finish with one slice of bread each.
Fry the bread in a pan without fat for about 3 minutes on each side. Wash parsley, shake dry, pluck leaves from the stalks and chop. Add parsley to the soup. Halve the breads and serve with the soup.